De Villiers, Peter A.,  1946- <br/><br/>
Early language / 
Peter A. de Villiers, Jill G. de Villiers. 
 - Cambridge :  Harvard University Press,  1979. 
 - 160 p. :  ill. ;  21 cm. 
 - The Developing child .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 157-158. 
<br/><br/><label>ISBN: </label>0674221400.  0674221419 
<br/><br/><label>LCCN: </label>78009862  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children--Language.
<br/><br/><label>LC Class. No.: </label>P118  / .D43 
<br/><br/><label>Dewey Class. No.: </label>401.930 83 DEV D